Results 61 to 70 of about 202,054 (300)

Bio-Electroanalysis Performance of Heme Redox-Center for π-π Interaction Bonding of a Methylene Blue-Graphene Modified Electrode

open access: yesNanomaterials, 2023
Hemeprotein detection has motivated extensive research on the direct reaction of a heme molecule and a redox dye. The present study used methylene blue as both donor and acceptor for a redox reaction.
Porntip Khownarumit   +5 more
doaj   +1 more source

Biochemical and Biophysical Studies of Heme Transport Proteins: HtaA, HtaB, and ChtB from the Corynebacterium diphtheriae

open access: yes, 2019
Many pathogenic bacteria require iron for their survival and virulence; in most cases hemin is the main iron source. Pathogens have developed sophisticated heme uptake mechanisms in order to maintain the homeostasis and remain as infectious agents ...
Uluisik, Rizvan C
core   +1 more source

PANoptosis in the pathogenesis of myelodysplastic syndromes

open access: yesMolecular Oncology, EarlyView.
PANoptosis, a combination of three types of programmed cell death, is mediated by a large protein complex called a PANoptosome. In healthy bone marrow hematopoietic cells, PANoptosis is restricted by inhibitory signaling. In MDS, bone marrow cells become sensitive to the PANoptotic stimuli due to the aberrant inactivation of inhibitory signaling or ...
Rohit Thalla   +4 more
wiley   +1 more source

A Bacterial Myeloperoxidase with Antimicrobial Properties

open access: yesBioTech, 2023
The four mammalian peroxidases (myeloperoxidase, eosinophilperoxidase, lactoperoxidase, and thyroid peroxidase) are widely studied in the literature. They catalyze the formation of antimicrobial compounds and participate in innate immunity.
Claire Céré   +5 more
doaj   +1 more source

Heme b (protoheme IX) is a precursor of heme a and heme d in Bacillus subtilis [PDF]

open access: yesFEMS Microbiology Letters, 1993
Bacillus subtilis can synthesise cytochromes containing a-, b-, c- and d-type heme. The biosynthetic pathways of these heme prosthetic groups were investigated by using strains blocked in uroporphyrinogen III synthesis from porphobilinogen or in heme b (protoheme IX) synthesis from uroporphyrinogen III. The results strongly suggest that heme a and heme
M, Hansson, C, von Wachenfeldt
openaire   +2 more sources

Heme-dependent decreases in endothelial barrier resistance are TLR4-dependent.

open access: yes, 2018
Rat microvascular endothelial cell (RMVEC) monolayers were seeded in Electric Cell-substrate Impedance Sensing (ECIS) arrays as described in Methods. When monolayers reached the appropriate resistance, monolayers were treated with vehicle or heme (10 μM,
Jean-Francois Pittet (254567)   +14 more
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

Utilization of Porcine Livers through the Formation of Zn-Protoporphyrin Pigment Optimized by a Response Surface Methodology

open access: yesFoods, 2023
There is a growing demand for clean-label products. This study aimed to obtain a food-grade coloring ingredient for meat products based on the formation of Zn-protoporphyrin from porcine livers, thus contributing to the development of nitrite-free ...
Mar Llauger   +5 more
doaj   +1 more source

Heme Oxygenase Protects against Placental Vascular Inflammation and Abortion by the Alarmin Heme in Mice. [PDF]

open access: yes, 2020
Both infectious as non-infectious inflammation can cause placental dysfunction and pregnancy complications. During the first trimester of human gestation, when palatogenesis takes place, intrauterine hematoma and hemorrhage are common phenomena, causing ...
Christiaan M. Suttorp   +23 more
core   +4 more sources

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

open access: yesFEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

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